body {
  background-color: #E7E7E7;
}
.ellipsis {
  display: block;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.header-pc {
  overflow: hidden;
  background-color: #434343;
  height: 80px;
}
.header-pc .logo {
  float: left;
  overflow: hidden;
  margin-top: 15px;
}
.header-pc .serach {
  position: relative;
  float: right;
}
.header-pc .serach .serach-input {
  margin-top: 15px;
  padding: 0 15px;
  border: 0;
  width: 315px;
  height: 30px;
  border-radius: 15px;
  outline: none;
}
.header-pc .serach .serach-btn {
  position: absolute;
  top: 20px;
  right: 10px;
  display: inline-block;
  width: 20px;
  height: 21px;
  background: url("") center no-repeat;
  cursor: pointer;
}
.header-pc .serach .keywords {
  padding: 0 15px;
  line-height: 30px;
  color: #fff;
}
.header-pc .serach .keywords span {
  display: inline-block;
  font-size: 12px;
  line-height: 30px;
  padding: 0 10px;
}
.header-m {
  overflow: hidden;
  background-color: #0091E1;
  height: 4em;
}
.header-m .logo {
  float: left;
  overflow: hidden;
  margin-left: 5%;
  width: 8em;
}
.header-m .logo img {
  margin-top: 1.2em;
  width: 100%;
  max-height: 2em;
}
.header-m .serach {
  float: right;
  width: 65%;
  height: 4em;
}
.header-m .serach .serach-input {
  float: right;
  position: relative;
  overflow: hidden;
  display: inline-block;
  width: 70%;
  height: 4em;
}
.header-m .serach .serach-input input {
  margin-top: .8em;
  margin-right: 1em;
  padding-left: 5%;
  padding-right: 25%;
  border: 0;
  width: 65%;
  height: 30px;
  border-radius: 15px;
  outline: none;
}
.header-m .serach .serach-input .serach-btn {
  position: absolute;
  top: 1.3em;
  right: 10%;
  display: inline-block;
  width: 20px;
  height: 21px;
  background: url("") center no-repeat;
  cursor: pointer;
}
.container .top {
  margin-top: 15px;
  width: 100%;
  height: 130px;
  background-color: #fff;
  border: 1px solid #D2D2D2;
}
.container .top .info-left {
  float: left;
  padding: 23px 40px;
  width: 672px;
}
.container .top .info-left p {
  float: left;
  display: inline-block;
  width: 100%;
  padding-left: 40px;
  line-height: 30px;
  font-size: 14px;
  color: #8B8B8B;
  background: url("") left center no-repeat;
}
.container .top .info-left b {
  display: inline-block;
  padding: 20px 0 5px;
  line-height: 30px;
  font-size: 14px;
}
.container .top .info-left b span {
  margin: 0 10px;
  display: inline-block;
  line-height: 26px;
  font-weight: normal;
  color: #FF0000;
  border-bottom: 2px solid #FF0000;
  cursor: pointer;
}
.container .top .info-right {
  float: right;
  padding: 23px 40px;
  width: 268px;
}
.container .top .info-right h2 {
  font-family: Arial;
  font-size: 30px;
  font-weight: bold;
  color: #AEC6D0;
}
.container .top .info-right p {
  font-family: Arial;
  font-size: 43px;
  font-weight: bold;
  color: #3498DB;
}
.container .top .info-right p span {
  font-family: "Microsoft YaHei UI";
  font-size: 16px;
  font-weight: normal;
  color: #AEC6D0;
}
.container .title-m {
  position: relative;
  padding: 0 3em;
  text-align: center;
  font-size: 1.6em;
  font-weight: bold;
  line-height: 3em;
  color: #3F5C74;
  background-color: #fff;
}
.container .title-m .list {
  position: absolute;
  top: 0;
  left: 0;
  display: inline-block;
  width: 3em;
  height: 3em;
  background: url("") center no-repeat;
  cursor: pointer;
}
.container .title-m .next {
  position: absolute;
  top: 0;
  right: 0;
  display: inline-block;
  width: 3em;
  height: 3em;
  background: url("") center no-repeat;
  cursor: pointer;
}
.container .content {
  overflow: hidden;
  margin-top: 15px;
}
.container .content .left {
  float: left;
  padding: 10px 40px;
  width: 672px;
  background-color: #fff;
  border: 1px solid #D2D2D2;
}
.container .content .left .title-pc {
  font-size: 20px;
  font-weight: bold;
  line-height: 80px;
  color: #3F5C74;
  border-bottom: 1px solid #C6C6C6;
}
.container .content .left .title-pc span {
  float: right;
  margin: 30px 0;
  display: inline-block;
  padding-left: 25px;
  font-size: 16px;
  font-weight: normal;
  line-height: 20px;
  color: #3F5C74;
  background: url("") left center no-repeat;
}
.container .content .left .step {
  text-align: center;
}
.container .content .left .step h3 {
  margin: 1em 0;
  padding-left: 20px;
  border-left: 3px solid #80D2FF;
  font-size: 1.4em;
  color: #6A6A6A;
  text-align: left;
  line-height: 18px;
}
.container .content .left .step h3 code {
  font-family: "Helvetica Neue", Helvetica, "Hiragino Sans GB", Arial, sans-serif;
  padding: 2px 4px;
  font-size: 90%;
  color: #c7254e;
  background-color: #f9f2f4;
  border-radius: 4px;
}
.container .content .left .step pre {
  text-align: left;
  display: block;
  padding: 9.5px;
  margin: 0 0 10px;
  font-size: 13px;
  line-height: 1.42857143;
  color: #333;
  word-break: break-all;
  word-wrap: break-word;
  background-color: #f5f5f5;
  border: 1px solid #ccc;
  border-radius: 4px;
}
.container .content .left .step pre code {
  padding: 0;
  font-size: inherit;
  color: inherit;
  white-space: pre-wrap;
  background-color: transparent;
  border-radius: 0;
}
.container .content .left .step img {
  max-width: 100%;
  margin: 1em auto;
}
.container .content .right {
  float: right;
  width: 248px;
  margin-left: 15px;
  padding: 23px 40px;
  background-color: #fff;
  border: 1px solid #D2D2D2;
}
.container .content .right .teach-option {
  margin-bottom: 35px;
  width: 100%;
  overflow: hidden;
  cursor: pointer;
}
.container .content .right .teach-option img {
  float: left;
  width: 100px;
  height: 75px;
}
.container .content .right .teach-option .info {
  float: right;
  overflow: hidden;
  width: 130px;
  height: 75px;
}
.container .content .right .teach-option .info h3 {
  width: 100%;
}
.container .content .right .teach-option .info p {
  margin-top: 10px;
  line-height: 16px;
}
.footer {
  height: 180px;
}
@media (min-width: 769px) {
  .header-pc,
  .container .top,
  .container .content .right,
  .container .content .title-pc,
  .footer {
    display: block;
  }
  .container .content .right {
    width: 248px;
  }
  .header-m,
  .container .title-m {
    display: none;
  }
  .container .content {
    margin-top: 15px;
  }
  .w1100 {
    width: 1100px;
  }
}
@media (max-width: 768px) {
  .header-pc,
  .container .top,
  .container .content .right,
  .container .content .title-pc,
  .footer {
    display: none;
  }
  .container .content .right {
    width: 80%;
    padding: 2em 10%;
  }
  .header-m,
  .container .title-m {
    display: block;
  }
  .container .content {
    margin-top: 0;
  }
  .w1100 {
    width: 100%;
  }
  .container .content .left {
    width: 80%;
    padding: 0 10% 2em;
  }
}
